CN106403169A - Fluorine-deficient protection method and device and air conditioner - Google Patents
Fluorine-deficient protection method and device and air conditioner Download PDFInfo
- Publication number
- CN106403169A CN106403169A CN201610806996.4A CN201610806996A CN106403169A CN 106403169 A CN106403169 A CN 106403169A CN 201610806996 A CN201610806996 A CN 201610806996A CN 106403169 A CN106403169 A CN 106403169A
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- conditioning equipment
- temperature variation
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 106
- 239000011737 fluorine Substances 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000002950 deficient Effects 0.000 title abstract 2
- 238000004378 air conditioning Methods 0.000 claims abstract description 156
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims 2
- 238000009833 condensation Methods 0.000 claims 2
- 230000007812 deficiency Effects 0.000 abstract 3
- 238000005057 refrigeration Methods 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 206010008190 Cerebrovascular accident Diseases 0.000 description 4
- 208000006011 Stroke Diseases 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention discloses a fluorine-deficient protection method and device and an air conditioner. Wherein, the method comprises the following steps: determining the temperature variation of the air conditioning equipment, correcting the temperature variation according to the running state of the air conditioning equipment, and controlling the air conditioning equipment to perform fluorine deficiency protection according to the corrected temperature variation. The technical scheme provided by the embodiment of the invention can more comprehensively and accurately judge the fluorine deficiency condition of the system and improve the reliability of fluorine deficiency protection of the system.
Description
Technical field
The present embodiments relate to air conditioner controlling technology field, more particularly, to a kind of scarce fluorine guard method, device and air-conditioning.
Background technology
Air-conditioning is in running it is possible that the situation of secondary refrigerant leakage.Air-conditioning lacks affects the normal of system during refrigerant
Run and even cause danger.For example in R32 coolant leakage, R32 refrigerant can explode after being mixed into air.
The change typically just according to temperature in air-conditioning system for the existing lack of fluorine of air-conditioners guard method judging air-conditioning system is
No scarce fluorine.Lack fluorine in existing scarce fluorine guard method and judge that not accurately reliability is relatively low.
Content of the invention
The present invention provides a kind of scarce fluorine guard method, device and air-conditioning, is accurately monitored cold in air-conditioning system with realization
Whether matchmaker leaks, and carries out in coolant leakage protecting control.
In a first aspect, embodiments providing a kind of scarce fluorine guard method, the method includes：
Determine the temperature variation of air-conditioning equipment；
Temperature variation according to the running status correction of described air-conditioning equipment；
Described air-conditioning equipment is controlled to carry out lacking fluorine protection according to revised temperature variation.
Second aspect, the embodiment of the present invention additionally provides a kind of scarce fluorine protection device, and this device includes：
Temperature variation determining module, for determining the temperature variation of air-conditioning equipment；
Temperature variation correcting module, for temperature variation described in the running status correction according to described air-conditioning equipment；
Scarce fluorine protection module, for controlling described air-conditioning equipment to carry out lacking fluorine protection according to revised temperature variation.
The third aspect, the embodiment of the present invention additionally provides a kind of air-conditioning equipment, and it is arbitrarily real that this air-conditioning equipment includes the present invention
Apply the scarce fluorine protection device that example is provided.
The embodiment of the present invention is passed through to determine the temperature variation of air-conditioning equipment, is repaiied according to the running status of described air-conditioning equipment
Just described temperature variation, i.e. the change of the system temperature that update the system running status etc. causes, because revised temperature becomes
Change amount more can react whether air-conditioning equipment lacks fluorine, controls air-conditioning equipment to carry out lacking fluorine protection according to revised temperature variation,
More can all-sidedly and accurately decision-making system scarce fluorine situation, improve the reliability that system lacks fluorine protection.
Brief description
Fig. 1 is the schematic flow sheet of a kind of scarce fluorine guard method that the embodiment of the present invention one provides；
Fig. 2 is the schematic flow sheet of a kind of scarce fluorine guard method that the embodiment of the present invention two provides；
Fig. 3 is the schematic flow sheet of a kind of scarce fluorine guard method that the embodiment of the present invention three provides；
Fig. 4 is the structural representation of a kind of scarce fluorine protection device that the embodiment of the present invention four provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure is illustrate only in description, accompanying drawing.
Embodiment one
The schematic flow sheet of a kind of scarce fluorine guard method that Fig. 1 provides for the embodiment of the present invention one.The present embodiment is applicable
Whether lack fluorine in judgement air-conditioning equipment, and carry out when air-conditioning equipment lacks fluorine lacking the situation of fluorine protection.The method can be by scarce fluorine
Protection device executing, can be realized by hardware and/or software, specifically can be integrated in air-conditioning equipment by described device.Referring to Fig. 1,
The scarce fluorine guard method that the present embodiment provides includes：
S110, determine the temperature variation of air-conditioning equipment.
The temperature variation of air-conditioning equipment refers to temperature variations within a period of time for the air-conditioning equipment system.Specifically may be used
To be the evaporimeter of air-conditioning equipment and the temperature variations of condenser.For example, the temperature in the first moment for the air-conditioning equipment is T1,
The temperature in the second moment for the air-conditioning equipment is T2, then the temperature variation of air-conditioning equipment is T2-T1.Specifically can be set by air-conditioning
Standby upper temperature sensor obtains the temperature of air-conditioning equipment, and then determines the temperature variation of air-conditioning equipment.
S120, the running status correction temperature variation according to air-conditioning equipment.
The change that in the temperature variation of air-conditioning equipment mainly air-conditioning equipment, the effect of refrigerant causes, but air-conditioning equipment
Running status also can affect temperature variation.Wherein, the running status of air-conditioning equipment can include the inner blower of air-conditioning equipment
The state such as air quantity and frequency.
When system mode changes, the operational factor of system also changes, if not considering system running state
Impact, scarce fluorine protection was it is possible that lost efficacy.In order to more accurately determine the impact to air-conditioning equipment temperature variation for the refrigerant, can
Running status correction temperature variation according to air-conditioning equipment.Revised temperature variation can more accurately react air-conditioning and set
In standby system, whether coolant quantity lacks.For example makeover process can deduct system running state using the temperature variation of air-conditioning equipment
Lead to the value of system temperature change, obtain revised temperature variation.
S130, according to revised temperature variation control air-conditioning equipment carry out lack fluorine protection.
Because amended temperature variation can more accurately react whether refrigerant in air-conditioning equipment system leaks, work as root
When controlling air-conditioning equipment to carry out lacking fluorine protection according to revised temperature variation, it is possible to achieve accurately in monitoring air-conditioning system
Whether refrigerant leaks, and carries out in time in coolant leakage protecting control.Air-conditioning is controlled to set according to revised temperature variation
Can be specifically to judge whether revised temperature variation meets the pre-conditioned of scarce fluorine protection for carrying out lacking fluorine protection, if
Revised temperature variation meets the pre-conditioned of scarce fluorine protection, then control air-conditioning equipment to carry out lacking fluorine protection.Empty controlling
When tune equipment carries out lacking fluorine protection, inside and outside blower fan, display interface, compressor and cross valve of air-conditioning equipment etc. can be controlled respectively
Make corresponding actions.For example, control compressor and outer blower fan are out of service, and cross valve does not commutate, and inner blower continues to run with, and
The alarm signal of fluorine fault can be lacked in the display screen display of air-conditioning equipment.
Technical scheme provided in an embodiment of the present invention, by determining the temperature variation of air-conditioning equipment, according to described air-conditioning
The temperature variation described in running status correction of equipment, i.e. the change of the system temperature that update the system running status etc. causes, by
More can react whether air-conditioning equipment lacks fluorine in revised temperature variation, control air-conditioning to set according to revised temperature variation
Standby carry out lacking fluorine protection, more can all-sidedly and accurately decision-making system scarce fluorine situation, improve the reliability that system lacks fluorine protection.
Embodiment two
The schematic flow sheet of a kind of scarce fluorine guard method that Fig. 2 provides for the embodiment of the present invention two.The present embodiment is above-mentioned
It is optimized operation on the basis of embodiment one.Referring to Fig. 2, the scarce fluorine that the present embodiment provides includes method and includes：
S210, determine the temperature variation of air-conditioning equipment.
S220, the air quantity correction temperature variation according to the indoor fan of described air-conditioning equipment.
Specifically, in cooling mode, temperature variation described in below equation correction can be used：
The absolute value of revised temperature variation=temperature variation
Wherein, k is positive integer, and k is directly proportional to the indoor fan gear of described air-conditioning equipment.
For example, when low wind shelves, apoplexy shelves, high wind shelves and four gears of superpower shelves are had on air-conditioning equipment, in air-conditioning equipment
When running on low wind shelves, k=1；When air-conditioning equipment runs on apoplexy shelves, k=2；When air-conditioning equipment runs on high wind shelves, k
=3；When air-conditioning equipment runs on superpower shelves, k=4.
In a heating mode, temperature variation described in below equation correction can be used：
The absolute value of revised temperature variation=temperature variation
Wherein, k is positive integer, and k is directly proportional to the indoor fan gear of described air-conditioning equipment.
S130, according to revised temperature variation control air-conditioning equipment carry out lack fluorine protection.
The technical scheme that the present embodiment provides, by temperature described in the air quantity correction of the indoor fan according to described air-conditioning equipment
Degree variable quantity, i.e. the change of the system temperature that systematic air flow etc. causes, because revised temperature variation more can react air-conditioning
Whether equipment lacks fluorine, controls air-conditioning equipment to carry out lacking fluorine protection according to revised temperature variation, more can all-sidedly and accurately sentence
Determine the scarce fluorine situation of system, improve the reliability that system lacks fluorine protection.
Embodiment three
The schematic flow sheet of a kind of scarce fluorine guard method that Fig. 3 provides for the embodiment of the present invention three.The present embodiment is above-mentioned
It is optimized operation on the basis of embodiment two.Referring to Fig. 3, the scarce fluorine that the present embodiment provides includes method and includes：
S310, obtain the evaporimeter of indoor environment temperature residing in the first moment for the air-conditioning equipment and air-conditioning equipment first
The evaporator tube temperature in moment.
S320, acquisition air-conditioning equipment are in the evaporator tube temperature in the second moment.
S330, obtain the condenser tube in the first moment for the described air-conditioning equipment condenser when gently described condenser is second
The condenser tube temperature carved.
Specifically, can by gather the air-conditioning equipment that detect of temperature sensor on air-conditioning equipment first the moment institute
The indoor environment temperature at place, evaporimeter are in the evaporator tube temperature in the first moment, condenser in the condenser tube temperature in the first moment, steaming
Send out device the evaporator tube temperature in the second moment, condenser the second moment condenser tube temperature.Preferably, the first moment can be sky
The compressor start-up time of tune equipment.
Second moment was in a certain moment after the first moment.Preferably, the second moment be located at the first moment after,
And it is spaced Preset Time between the second moment and blower fan gear switch instant.I.e. Preset Time after the conversion of blower fan gear
Inside do not detect the Guan Wen of the gentle condenser of pipe of evaporimeter, just start detection after the Preset Time after the conversion of blower fan gear and steam
Send out the Guan Wen of the gentle condenser of pipe of device.After the conversion of blower fan gear, system be in unstable state, the parameter of system is unstable
Fixed, if the Guan Wen now detecting evaporimeter immediately and managing gentle condenser, carry out scarce fluorine and judge, error may be than larger.
S340, the first temperature variation determining air-conditioning equipment and second temperature variable quantity.
Wherein, described first temperature variation is described evaporimeter in air-conditioning equipment described in the Guan Wenyu in the second moment
The temperature difference of the indoor environment temperature residing for one moment, described second temperature variable quantity is the evaporation in the second moment for the described evaporimeter
The difference of the gentle pipe temperature of the evaporimeter in the first moment for the described evaporimeter of device pipe.
For example, evaporimeter is in the Guan Wenwei T2 in the second moment, indoor environment temperature residing in the first moment for the air-conditioning equipment
For T1, then the first temperature variation is T2-T1.
S350, air quantity correction first temperature variation according to the indoor fan of air-conditioning equipment and second temperature variable quantity.
If revised first temperature variation of S360 is located at the first preset range, the change of revised second temperature
Amount positioned at the second preset range and condenser in the condenser tube temperature in the second moment and condenser tube temperature in the first moment
Pipe potential temperature, in the 3rd preset range, controls described air-conditioning equipment to carry out lacking fluorine protection.
The technical scheme that the present embodiment provides, it is possible to achieve the all-sidedly and accurately scarce fluorine situation of decision-making system, improves system
The reliability of scarce fluorine protection.
Technical scheme is discussed in detail below by example:
(1) air-conditioning equipment starting up, air-conditioning equipment runs on refrigeration mode.
Indoor ring temperature T residing for collect and process machine Startup time air-conditioning equipmentRing 0, evaporator tube temperature TInner tube 0With condenser tube temperature
TOuter tube 0.After compressor start start continuous operation N minute, gather evaporator tube temperature TInner tube 1With condenser tube temperature TOuter tube 1.Determine
One temperature variation Δ T1=TInner tube 1-TInner ring 0, second temperature variation delta T2=TInner tube 1-TInner tube 0.Wherein, X after wind shelves change
In minute, do not detect collection evaporator tube gentle condenser tube temperature, start after X minute to detect.
Detection air-conditioning indoor fan gear, the air quantity according to indoor fan changes to the first temperature variation and second temperature
Amount is modified.Revised first temperature variation Δ TRevise 1The absolute value of the=the first temperature variation
Revised second temperature variation delta TRevise 2The absolute value of=second temperature variable quantity
Wherein, k is the integer more than zero.The value of k is relevant with inner blower gear, and when inner blower gear is bigger, k takes
Value is bigger；
Judge revised first temperature variation, second temperature variable quantity and condenser tube temperature TOuter tube 1With condenser pipe pipe
Warm TOuter tube 0Difference whether meet following condition simultaneously：
ΔTRevise 1≤TRefrigeration lacks fluorine rotection thresholds 1；
ΔTRevise 2≤TRefrigeration lacks fluorine rotection thresholds 2；
TOuter tube 1-TOuter tube 0≤TRefrigeration lacks fluorine rotection thresholds 3；
If above-mentioned condition meets it is determined that air-conditioning equipment lacks fluorine simultaneously, carry out lacking fluorine protection.
Wherein, TRefrigeration lacks fluorine rotection thresholds 1=A DEG C, TRefrigeration lacks fluorine rotection thresholds 2=B DEG C, TRefrigeration lacks fluorine rotection thresholds 3=C DEG C.The value of A, B, C, k, X and N
Can be set according to actual conditions.As 0,1,2,3,4,5,6,7,8 or 9 equivalent in taken, they can identical it is also possible to not
With.
(2) air-conditioning equipment starting up, air-conditioning equipment runs on heating mode.
Indoor ring temperature T residing for collect and process machine Startup time air-conditioning equipmentRing 0, evaporator tube temperature TInner tube 0With condenser tube temperature
TOuter tube 0.After compressor start start continuous operation M minute, gather evaporator tube temperature TInner tube 1, condenser tube temperature TOuter tube 1With outdoor ring
Border temperature TRing 1.Determine the first temperature variation Δ T1=TInner tube 1-TInner ring 0, second temperature variation delta T2=TInner tube 1-TInner tube 0.Wherein,
Wind shelves change after in X minute, do not detect collection evaporator tube gentle condenser tube temperature, after X minute, start detection.
Detection air-conditioning indoor fan gear, the air quantity according to indoor fan changes to the first temperature variation and second temperature
Amount is modified.Revised first temperature variation Δ TRevise 1The absolute value of the=the first temperature variation
Revised second temperature variation delta TRevise 2The absolute value of=second temperature variable quantity
k>0, and be integer.The value of k is relevant with inner blower gear, and when inner blower gear is bigger, the value of k is bigger；
In TRing 1When >=W DEG C, judge revised first temperature variation, revised second temperature variable quantity and cold
Condenser pipe temperature TOuter tube 1With condenser pipe pipe temperature TOuter tube 0Difference whether meet following condition simultaneously：
ΔTRevise 1≤THeat scarce fluorine rotection thresholds 1；
ΔTRevise 2≤THeat scarce fluorine rotection thresholds 2；
TOuter tube 0-TOuter tube 1≥THeat scarce fluorine rotection thresholds 3；
If above-mentioned condition meets it is determined that air-conditioning equipment lacks fluorine simultaneously, carry out lacking fluorine protection.
In TRing 1During W DEG C of ＜, judge revised first temperature variation, revised second temperature variable quantity and cold
Condenser pipe temperature TOuter tube 1With condenser pipe pipe temperature TOuter tube 0Difference whether meet following condition simultaneously：
ΔTRevise 1≤THeat scarce fluorine rotection thresholds4；
ΔTRevise 2≤THeat scarce fluorine rotection thresholds 5；
TOuter tube 0-TOuter tube 1≥THeat scarce fluorine rotection thresholds 6；
If above-mentioned condition meets it is determined that air-conditioning equipment lacks fluorine simultaneously, carry out lacking fluorine protection.
Wherein, THeat scarce fluorine rotection thresholds 1=T1 DEG C, THeat scarce fluorine rotection thresholds 2=U1 DEG C, THeat scarce fluorine rotection thresholds 3=V1 DEG C；
THeat scarce fluorine rotection thresholds 4=T2 DEG C；THeat scarce fluorine rotection thresholds 5=U2 DEG C, THeat scarce fluorine rotection thresholds 6=V2 DEG C；
The value of M, X, T1, T2, U1, U2, V1 and V2 can be set according to actual conditions, such as take 0,1,2,3,4,5,6,7,
8th, 9 is equivalent, they can identical it is also possible to different.The value of W is set also dependent on actual conditions, such as take -15, -14, -
13rd, -12, -11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1,0 is equivalent.
(3) air-conditioning equipment starting up, air-conditioning equipment runs on refrigeration mode.
Indoor ring temperature T residing for collect and process machine Startup time air-conditioning equipmentRing 0, evaporator tube temperature TInner tube 0With condenser tube temperature
TOuter tube 0.Under current blower fan gear, after compressor continuously runs 4 minutes, gather evaporator tube temperature TInner tube 1, condenser tube temperature TOuter tube 1.
Determine the first temperature variation Δ T1=TInner tube 1-TInner ring 0, second temperature variation delta T2=TInner tube 1-TInner tube 0.
Detection air-conditioning indoor fan gear, the air quantity according to indoor fan changes to the first temperature variation and second temperature
Amount is modified.Revised first temperature variation Δ TRevise 1The absolute value of the=the first temperature variation
Revised second temperature variation delta TRevise 2The absolute value of=second temperature variable quantity
Wherein, k>0, and be integer.The value of k is relevant with inner blower gear, and the value correspondence of k is as follows:
Low wind shelves, k=1；Apoplexy shelves, k=2；High wind shelves, k=3；Superpower shelves, k=4.
Air-conditioning indoor fan gear is detected is high wind shelves, now, Δ TRevise 1=| Δ T1|-0.88；
Judge revised first temperature variation, revised second temperature variable quantity and condenser tube temperature TOuter tube 1With
Condenser pipe pipe temperature TOuter tube 0Difference meet following condition simultaneously：
ΔTRevise 1≤2°；
ΔTRevise 2≤2°；
TOuter tube 0-TOuter tube 1≤3°；
If above-mentioned condition meets it is determined that air-conditioning equipment lacks fluorine simultaneously, carry out lacking fluorine protection.
(4) air-conditioning equipment starting up, air-conditioning equipment runs on heating mode.
Indoor ring temperature T residing for collect and process machine Startup time air-conditioning equipmentRing 0, evaporator tube temperature TInner tube 0With condenser tube temperature
TOuter tube 0.Under current blower fan gear, after compressor continuously runs 3 minutes, gather evaporator tube temperature TInner tube 1, condenser tube temperature TOuter tube 1
With outdoor environment temperature TRing 1.Determine the first temperature variation Δ T1=TInner tube 1-TInner ring 0, second temperature variation delta T2=TInner tube 1-
TInner tube 0.
Detection air-conditioning indoor fan gear, the air quantity according to indoor fan changes to the first temperature variation and second temperature
Amount is modified.Revised first temperature variation Δ TRevise 1The absolute value of the=the first temperature variationRepair
Second temperature variation delta T after justRevise 2The absolute value of=second temperature variable quantity
Wherein, k>0, and be integer.The value of k is relevant with inner blower gear, and the value correspondence of k is as follows:
Low wind shelves, k=1；Apoplexy shelves, k=2；High wind shelves, k=3；Superpower shelves, k=4.
Now, air-conditioning indoor fan gear is detected is high wind shelves, Δ TRevise 1=| Δ T1|-0.17；
In TRing 1When >=-10 DEG C, judge revised first temperature variation, second temperature variable quantity and condenser tube
Whether warm T outer tube 1 meets following condition with the difference of condenser pipe pipe temperature T outer tube 0 simultaneously：
ΔTRevise 1≤7°；
ΔTRevise 2≤7°；
TOuter tube 1-TOuter tube 0≥15°；
If above-mentioned condition meets it is determined that air-conditioning equipment lacks fluorine simultaneously, carry out lacking fluorine protection.
In TRing 1When ＜ -10 DEG C, judge revised first temperature variation, revised second temperature variable quantity and
Condenser tube temperature TOuter tube 1With condenser pipe pipe temperature TOuter tube 0Difference whether meet following condition simultaneously：
ΔTRevise 1≤7°；
ΔTRevise 2≤7°；
TOuter tube 0-TOuter tube 1≥11°；
If above-mentioned condition meets it is determined that air-conditioning equipment lacks fluorine simultaneously, carry out lacking fluorine protection.
Example IV
Fig. 4 is the structural representation of a kind of scarce fluorine protection device that the embodiment of the present invention four provides.Referring to Fig. 4, this device
Including：
Temperature variation determining module 410, for determining the temperature variation of air-conditioning equipment；
Temperature variation correcting module 420, for temperature change described in the running status correction according to described air-conditioning equipment
Amount；
Scarce fluorine protection module 430, for controlling described air-conditioning equipment to carry out lacking fluorine guarantor according to revised temperature variation
Shield.
Further, described temperature variation correcting module 420 specifically for：
The temperature variation described in air quantity correction of the indoor fan according to described air-conditioning equipment.
Further, described temperature variation determining module 410 includes：
First temperature acquiring unit 411, for obtain described air-conditioning equipment in the first moment residing for indoor environment temperature
With the evaporimeter of described air-conditioning equipment the first moment evaporator tube temperature；
Second temperature acquiring unit 412, for obtaining the evaporator tube temperature in the second moment for the air-conditioning equipment；
Temperature variation determining unit 413, for determining the first temperature variation and the second temperature change of air-conditioning equipment
Amount；
Wherein, described first temperature variation is described evaporimeter in air-conditioning equipment described in the Guan Wenyu in the second moment
The temperature difference of the indoor environment temperature residing for one moment, described second temperature variable quantity is the evaporation in the second moment for the described evaporimeter
The difference of the gentle pipe temperature of the evaporimeter in the first moment for the described evaporimeter of device pipe.
Further, described temperature variation correcting module 420 specifically for：
In cooling mode, using the first temperature variation described in below equation correction and described second temperature variable quantity：
The absolute value of revised temperature variation=temperature variation
Wherein, k is directly proportional to the indoor fan gear of described air-conditioning equipment.
Further, described temperature variation correcting module 420 specifically for：
In a heating mode, using the first temperature variation described in below equation correction and second temperature variable quantity：
The absolute value of revised temperature variation=temperature variation
Wherein, k is directly proportional to the indoor fan gear of described air-conditioning equipment.
Further, described device also includes：
3rd temperature acquisition module 440, uses in temperature variation described in the running status correction according to described air-conditioning equipment
In before control air-conditioning equipment to carry out lacking fluorine protection according to revised temperature variation, obtain described air-conditioning equipment condenser
The first moment condenser tube gently described condenser in the condenser tube temperature in the second moment；
If described scarce fluorine protection module 430 is used for revised first temperature variation and being located at the first preset range, repairing
Second temperature variable quantity after just positioned at the second preset range and described condenser the second moment condenser tube temperature with
Described condenser tube temperature the first moment pipe potential temperature in the 3rd preset range, control described air-conditioning equipment to carry out lacking fluorine protection.
Said apparatus can perform the scarce fluorine guard method that any embodiment of the present invention is provided, and possesses execution method corresponding
Functional module and beneficial effect.
The embodiment of the present invention additionally provides a kind of air-conditioning equipment, and this air-conditioning equipment includes the scarce fluorine of any embodiment of the present invention
Protection device.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
1. a kind of scarce fluorine guard method is it is characterised in that include：
Determine the temperature variation of air-conditioning equipment；
Temperature variation according to the running status correction of described air-conditioning equipment；
Described air-conditioning equipment is controlled to carry out lacking fluorine protection according to revised temperature variation.
2. method according to claim 1 is it is characterised in that the described running status correction institute according to described air-conditioning equipment
State temperature variation, including：
The temperature variation described in air quantity correction of the indoor fan according to described air-conditioning equipment.
3. method according to claim 1 and 2, it is characterised in that the temperature variation of described determination air-conditioning equipment, is wrapped
Include：
Obtain the evaporimeter of indoor environment temperature residing in the first moment for the described air-conditioning equipment and described air-conditioning equipment first
The evaporator tube temperature in moment；
Obtain the evaporator tube temperature in the second moment for the air-conditioning equipment；
Determine the first temperature variation and the second temperature variable quantity of air-conditioning equipment；
Wherein, described first temperature variation is described evaporimeter when described in the Guan Wenyu in the second moment, air-conditioning equipment is first
Carve the temperature difference of residing indoor environment temperature, described second temperature variable quantity is the evaporator tube in the second moment for the described evaporimeter
The gently difference of the pipe temperature of the evaporimeter in the first moment for the described evaporimeter.
4. method according to claim 2 is it is characterised in that the air quantity of the described indoor fan according to described air-conditioning equipment
Revise described temperature variation, including：
In cooling mode, using temperature variation described in below equation correction：
The absolute value of revised temperature variation=temperature variation
Wherein, k is directly proportional to the indoor fan gear of described air-conditioning equipment.
5. method according to claim 2 is it is characterised in that the described indoor fan air quantity correction institute according to air-conditioning equipment
State temperature variation, including：
In a heating mode, using temperature variation described in below equation correction：
The absolute value of revised temperature variation=temperature variation
Wherein, k is directly proportional to the indoor fan gear of described air-conditioning equipment.
6. method according to claim 3, its spy is being, the described running status correction institute according to described air-conditioning equipment
Before stating temperature variation, also include：
Obtain described air-conditioning equipment condenser the first moment condenser tube gently described condenser in the condensation in the second moment
Device Guan Wen；
Described according to revised temperature variation control air-conditioning equipment carry out lack fluorine protection, including：
If revised first temperature variation be located at the first preset range, revised second temperature variable quantity positioned at the
Two preset range and described condenser the second moment condenser tube temperature and described condenser tube temperature the first moment pipe
Potential temperature, in the 3rd preset range, controls described air-conditioning equipment to carry out lacking fluorine protection.
7. a kind of scarce fluorine protection device is it is characterised in that include：
Temperature variation determining module, for determining the temperature variation of air-conditioning equipment；
Temperature variation correcting module, for temperature variation described in the running status correction according to described air-conditioning equipment；
Scarce fluorine protection module, for controlling described air-conditioning equipment to carry out lacking fluorine protection according to revised temperature variation.
8. device according to claim 7 it is characterised in that described temperature variation correcting module specifically for：
The temperature variation described in air quantity correction of the indoor fan according to described air-conditioning equipment.
9. the device according to claim 7 or 8 is it is characterised in that described temperature variation determining module includes：
First temperature acquiring unit, for obtain described air-conditioning equipment in the first moment residing for indoor environment temperature and described sky
The evaporimeter of tune equipment is in the evaporator tube temperature in the first moment；
Second temperature acquiring unit, for obtaining the evaporator tube temperature in the second moment for the air-conditioning equipment；
Temperature variation determining unit, for determining the first temperature variation and the second temperature variable quantity of air-conditioning equipment；
Wherein, described first temperature variation is described evaporimeter when described in the Guan Wenyu in the second moment, air-conditioning equipment is first
Carve the temperature difference of residing indoor environment temperature, described second temperature variable quantity is the evaporator tube in the second moment for the described evaporimeter
The gently difference of the pipe temperature of the evaporimeter in the first moment for the described evaporimeter.
10. device according to claim 8 it is characterised in that described temperature variation correcting module specifically for：
In cooling mode, using the first temperature variation described in below equation correction and described second temperature variable quantity：
The absolute value of revised temperature variation=temperature variation
Wherein, k is directly proportional to the indoor fan gear of described air-conditioning equipment.
11. devices according to claim 8 it is characterised in that described temperature variation correcting module specifically for：
In a heating mode, using the first temperature variation described in below equation correction and second temperature variable quantity：
The absolute value of revised temperature variation=temperature variation
Wherein, k is directly proportional to the indoor fan gear of described air-conditioning equipment.
12. devices according to claim 9, its spy is being, is also including：
3rd temperature acquisition module, for before temperature variation described in the running status correction according to described air-conditioning equipment,
Obtain described air-conditioning equipment condenser the first moment condenser tube gently described condenser in the condenser tube in the second moment
Temperature；
If described scarce fluorine protection module be used for revised first temperature variation be located at the first preset range, revised the
Two temperature variations positioned at the second preset range and described condenser the second moment condenser tube temperature and described condensation
Device Guan Wen the first moment pipe potential temperature in the 3rd preset range, control described air-conditioning equipment to carry out lacking fluorine protection.
A kind of 13. air-conditioning equipments are it is characterised in that include the scarce fluorine protection device described in any one of claim 7-12.
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| CN201610806996.4A CN106403169B (en) | 2016-09-06 | 2016-09-06 | Fluorine-deficient protection method and device and air conditioner |
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| CN106403169B (en) | 2020-11-20 |
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